J/AJ/160/175 BVRcIc light curve of eclipsing binary V1023 Persei (Samec+, 2020)
BVRcIc observations and analysis of the UV LEO-type binary, the pre-WUMa,
V1023 Persei.
Samec R., Caton D., Faulkner D.R., Morgan S.
<Astron. J., 160, 175 (2020)>
=2020AJ....160..175S 2020AJ....160..175S
ADC_Keywords: Binaries, eclipsing; Stars, double and multiple; Stars, dwarfs;
Photometry, UBVRI
Keywords: Close binary stars ; Eclipsing binary stars ; Detached binary stars ;
W Ursae Majoris variable stars ; RS Canum Venaticorum variable stars
Abstract:
V1023 Per is a polar spotted, but well-detached dwarf binary, very
likely a Pre-WUMa eclipsing binary. It was observed on 11 nights in
2015 October, November, and December at Dark Sky Observatory in North
Carolina with the 0.81m reflector of Appalachian State University. The
period behavior is complex and may be increasing with a cubic or
quadratic ephemeris. Its odd light curves are of high amplitude but
have no totality and reach maximum light just before and following the
secondary eclipse, indicating that it has polar spots similar to UV
Leo. The 28yr orbital period study calls the attention of observers to
further monitor this binary to understand the complex nature of the
period evolution. Its presently fixed polar spot does indicate that it
must have a strong magnetic field and that it is synchronously
rotating. The BVRcIc simultaneous 2016 Wilson-Devinney program (W-D)
solution gives fillouts of 68% and 75% for the primary and secondary
components, respectively. The polar position of the spot, its radius
(24°), and T-fact (0.75) indicate that a strong magnetic field is
present. The small ΔT in the components (∼289K) show that the
stars are similar in spectral type despite them being well detached.
The inclination is high, ∼85.19°±0.04°, but there is not a
total eclipse due to the high mass ratio (∼0.739±0.001). Due to
the low galactic position (longitude=150.390°,
latitude=-1.023°), its reddening is addressed. The primary
components temperature is estimated to be 5250±250K.
Description:
Our BVRI light curves were taken on 2015 October 19, 23, and 24,
November 14-16, 20, 25, and 26, December 4-6 at Dark Sky Observatory
in North Carolina with the 0.81m reflector of Appalachian State
University at Philips Gap, North Carolina with standard BVRcIc
filters.
Objects:
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RA (2000) DE Designation(s)
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04 01 58.84 +51 23 42.2 V1023 Persei = V* V1023 Per
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 17 2641 B, V, Rc, Ic photometric observations of
V1023 Persei
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See also:
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/ApJ/723/1469 : Flux calibrations and WZ Oph photometry (Wilson+, 2010)
J/AJ/141/44 : V396 Mon BVRI light curves (Liu+, 2011)
J/A+A/539/A129 : BVRI light curves of 3 eclipsing binaries (Liakos+, 2012)
J/AJ/143/34 : SZ Her BVRI light curves (Lee+, 2012)
J/AJ/143/99 : Photometry of W UMa eclipsing binaries (Terrell+, 2012)
J/AJ/144/37 : BVRI photometry of the eclipsing binary BS Vul (Zhu+, 2012)
J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+,2013)
J/ApJ/788/41 : BVRI light curve of OGLE LMC-ECL-11893 (Dong+, 2014)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/AJ/149/48 : BVRI light curves of ZZ Eri (Samec+, 2015)
J/other/IBVS/6151 : 81th name-list of variable stars. I. (Kazarovets+, 2015)
J/AJ/152/199 : BV(RI)c light curves of FF Vul (Samec+, 2016)
J/AJ/152/219 : BV(RI)c light curves of DD Indi (Samec+, 2016)
J/AJ/154/260 : 3 short-period eclipsing binaries BVRI photom. (Pi+, 2017)
J/AJ/157/3 : BVRI light curves of the binary QS Vir (Latkovic+, 2019)
J/A+A/642/A108 : PN G283.7-05.1 BVRI and RV curves (Jones+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Filt Filter used (453 B, 742 Ic, 847 Rc or 599 V)
4- 9 F6.3 mag Dmag [-0.36/0.653] Differential magnitude in Filter
11- 17 F7.4 d HJD [14/63] Heliocentric Julian Date, HJD-2457300
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 18-Nov-2020